From: Paul E. McKenney Date: Mon, 3 Oct 2011 00:21:18 +0000 (-0700) Subject: rcu: Document failing tick as cause of RCU CPU stall warning X-Git-Tag: v3.3-rc1~193^2^2~56 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c01531f08f8ba663a20d8472a3032f6df133b6e;p=pandora-kernel.git rcu: Document failing tick as cause of RCU CPU stall warning One of lclaudio's systems was seeing RCU CPU stall warnings from idle. These turned out to be caused by a bug that stopped scheduling-clock tick interrupts from being sent to a given CPU for several hundred seconds. This commit therefore updates the documentation to call this out as a possible cause for RCU CPU stall warnings. Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- Reading git-diff-tree failed